<template>
  <div class="app-box">
    <h1>我是根组件</h1>
    <hr>
    <Add />
    <hr>
    <Sub />
  </div>
</template>
<script>
import Add from './components/add.vue'
import Sub from './components/sub.vue'

export default {
  data() {
    return {
      
    }
  },
  components: {
    Add,
    Sub
  }
}
</script>
<style lang="css" scoped>
  
</style>